I have Vista Ultimate 32 bit, and the Vista Codec Pack which gives me explorer (as well as WMP 11 library entries) thumbnails for nearly every video format around, including .mkv and .mp4, of which I have dozens of vid files.

I used to use Fair Use Wizard a lot in XP, but I didn't get MP4 thumbnails in XP, so I wouldn't have noticed any change.
But I love my across-the-board MP4 thumbnails in Vista, and each and every time I've tried installing Fair Use Wizard 2.8, the thumbnails are gone at next reboot!
Is there a way to get Fair Use Wizard to stop disabling my MP4 thumbnails? Thanks in advance...!

No I didn't change file associations.

But I found a fix for the time being. I found an old install on my laptop of FU 2.5 (before they got very deeply into mp4 encoding) and THIS version does not disable my mp4 thumbnails.
Which is great cause the thing I loved FU for the most was quality Xvid encoding for my portables.
So I'm happy for now:)

FYI - with the very awesome, and free Haali Media Splitter, you can offset the first thumbnail frame - it's set to 100 by default, so you NEVER get black squares...

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